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Question

Current flowing in a Zener diode as shown in circuit is:

(Given diode is an ideal and VZ=4 V)


A
0.4 A
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B
0.5 A
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C
0.9 A
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D
0.1 A
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Solution

The correct option is D 0.1 A

Given:
VZ=4 V i.e, potential drop across 10 Ω is 4 V.

Using, V=iR

i=VR=410=0.4 A

Voltage drop across 2 Ω is 1 V,

iNet=VR=12=0.5 A

iZ=iNeti

=0.50.4=0.1 A

Hence, (D) is the correct answer.

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